Exemption under section 35AC: eligible hospital upgrade project extended, preserving prior approved cost and eligibility. The Central Government, under the Explanation to section 35AC, specifies the Smt. Sharda Jhatakia Memorial Trust's project to upgrade an eye hospital with additional medical units as an eligible project for tax exemption and, following the National Committee's recommendation that the project is being executed properly, extends that specification for a further two years from the financial year 2004-2005 without change to the approved project cost.